53290840 has 32 divisors (see below), whose sum is σ = 120340080. Its totient is φ = 21238912.

The previous prime is 53290813. The next prime is 53290849. The reversal of 53290840 is 4809235.

53290840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53290849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9447 + ... + 13993.

Almost surely, 2^53290840 is an apocalyptic number.

It is an amenable number.

53290840 is an abundant number, since it is smaller than the sum of its proper divisors (67049240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53290840 is a wasteful number, since it uses less digits than its factorization.

53290840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4851 (or 4847 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 53290840 is about 7300.0575340199. The cubic root of 53290840 is about 376.3144155963.

The spelling of 53290840 in words is "fifty-three million, two hundred ninety thousand, eight hundred forty".